Modified unittest to use new argument syntax.

tests/html/svg_2_test.dart

 #library('SVG2Test');
 #import('../../pkg/unittest/unittest.dart');
 #import('../../pkg/unittest/html_config.dart');
 #import('dart:html');
 
 // Test that SVG elements explicitly implement the IDL interfaces (is-checks
 // only, see SVGTest3 for behavioural tests).
 
 main() {
 
   insertTestDiv() {
     var element = new Element.tag('div');
     element.innerHTML = r'''
 <svg id='svg1' width='200' height='100'>
 <rect id='rect1' x='10' y='20' width='130' height='40' rx='5'fill='blue'></rect>
 </svg>
 ''';
     document.body.nodes.add(element);
     return element;
   }
 
   useHtmlConfiguration();
 
   test('rect_isChecks', () {
       var div = insertTestDiv();
       var r = document.query('#rect1');
 
       // Direct inheritance chain
-      Expect.isTrue(r is SVGElement);
-      Expect.isTrue(r is Element);
-      Expect.isTrue(r is Node);
+      expect(r, new isInstanceOf<SVGElement>('SVGElement'));
+      expect(r, new isInstanceOf<Element>('Element'));
+      expect(r, new isInstanceOf<Node>('Node'));
 
       // Other implemented interfaces.
-      Expect.isTrue(r is SVGTests);
-      Expect.isTrue(r is SVGLangSpace);
-      Expect.isTrue(r is SVGExternalResourcesRequired);
-      Expect.isTrue(r is SVGStylable);
-      Expect.isTrue(r is SVGTransformable);
-      Expect.isTrue(r is SVGLocatable);
+      expect(r, new isInstanceOf<SVGTests>('SVGTests'));
+      expect(r, new isInstanceOf<SVGLangSpace>('SVGLangSpace'));
+      expect(r, new isInstanceOf<SVGExternalResourcesRequired>(
+          'SVGExternalResourcesRequired'));
+      expect(r, new isInstanceOf<SVGStylable>('SVGStylable'));
+      expect(r, new isInstanceOf<SVGTransformable>('SVGTransformable'));
+      expect(r, new isInstanceOf<SVGLocatable>('SVGLocatable'));
 
       // Interfaces not implemented.
-      Expect.isFalse(r is SVGNumber);
-      Expect.isFalse(r is SVGRect);
-      Expect.isFalse(r is SVGSVGElement);
+      // TODO(gram): use this version when dart2js handles 'is' properly.
+      // expect(r, isNot(new isInstanceOf<SVGNumber>('SVGNumber')));
+      expect(r is! SVGNumber, isTrue);
+      // TODO(gram): use this version when dart2js handles 'is' properly.
+      // expect(r, isNot(new isInstanceOf<SVGRect>('SVGRect')));
+      expect(r is! SVGRect, isTrue);
+      expect(r,
+          isNot(new isInstanceOf<SVGSVGElement>('SVGSVGElement')));
 
       div.remove();
     });
 }